Pay attention to the following points when storing the cold storage of Laoshan Pear:
Refrigeration is the main way to store Dangshan pears. Low temperature storage can well inhibit the respiration of pear fruit and microbial activity in the reservoir, and improve storage quality. After the pears are harvested, they can be graded, packaged, pre-stored, and ready for storage. The specific method of cold storage pre-storage is to reduce the temperature of the storage to 0 °C before the pears are stored in the warehouse. When the storage temperature rises to 4 °C, the storage is started, and the cooling is continued, so that the storage temperature does not exceed 15-16 °C. After filling, the temperature drops by 1 °C every day. After falling to 12 °C, it drops 1 °C every 5 days. After falling to 8 °C, it drops 1 °C every 4 days and drops to 4 °C. Then it was stopped every 2d to 1 °C, and the reservoir temperature was maintained at 1±0.50 °C. Cooling down to master the principle of slow early and late, this is conducive to the storage of pears.
The humidity requirement of the cold storage environment is between 85% and 93%. Temperature control in the early stages of storage is especially important. The humidification methods that can be used are as follows: 1. The ground is sprinkled with water; 2. The wet straw curtain is attached; 3. The wet sawdust with a little potassium permanganate solution is placed in the warehouse; 4. The humidifier is used.
The inside of the library should be constantly ventilated, so that people can not smell the pear in the library. Because pears are sensitive to carbon dioxide, more than 1% of carbon dioxide may cause browning of the fruit and flesh of the pear. Pay attention to moisturizing during ventilation to prevent moisture consumption caused by ventilation.
During the storage process, the quality of the fruit should be regularly sampled to determine appropriate technical management measures in a timely manner. When leaving the warehouse, when the temperature outside the warehouse is higher than 15 °C, the temperature should be gradually increased to 10 ~ 12 °C, and the pear fruit can be discharged from the warehouse. Otherwise, the quality of the pear fruit will change rapidly, affecting the sale of fruit.
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